open rack: combination design easy setup,low cost easy install and uninstall transport,assembly open rack: STANDARD:COMPLY WITH ANSI/EIA RS-310-D,IEC297-2,DIN41491,PARTI,DIN41494,PART7,GB/T3047.2-92STANDARDIP20Color: RAL9004,RAL7044Material: SPCC quality cold rolled steel.Thickness: Square hole strips 2.0mm, others 1.2mm.Surface finish: Degrease,acid picking,rust prevention and parkerizing,pure ...